I may have to get a NL111 electrode holder for the existing NL102G headstage (Digitimer) for building up an ephys recording system. But apparently only the 2 mm pin at the rear of the holder holds the pipette holder assembly in place on the headstage, unlike the design of Axon electrode holder and headstage (Molecular Device). Should I be concerned about the stability of this connection and whether this provides a strong hold of the glass micropipette?